EP0738265A1 - Taxan derivate - Google Patents

Taxan derivate

Info

Publication number
EP0738265A1
EP0738265A1 EP95938390A EP95938390A EP0738265A1 EP 0738265 A1 EP0738265 A1 EP 0738265A1 EP 95938390 A EP95938390 A EP 95938390A EP 95938390 A EP95938390 A EP 95938390A EP 0738265 A1 EP0738265 A1 EP 0738265A1
Authority
EP
European Patent Office
Prior art keywords
formula
group
aza
deoxy
compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP95938390A
Other languages
English (en)
French (fr)
Inventor
Maria Menichincheri
Walter Ceccarelli
Marina Ciomei
Domenico Fusar Bassini
Nicola Mongelli
Ermes Vanotti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfizer Italia SRL
Original Assignee
Pharmacia SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB9422245A external-priority patent/GB9422245D0/en
Priority claimed from GBGB9511475.7A external-priority patent/GB9511475D0/en
Priority claimed from GBGB9521168.6A external-priority patent/GB9521168D0/en
Application filed by Pharmacia SpA filed Critical Pharmacia SpA
Publication of EP0738265A1 publication Critical patent/EP0738265A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D305/00—Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms
    • C07D305/14—Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms condensed with carbocyclic rings or ring systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents

Definitions

  • the present invention is directed to new taxane derivatives
  • the taxane family of diterpenes includes Paclitaxel (also called Paclitaxel).
  • paclitaxel is a very potent anticancer drug
  • the present invention provides taxane derivatives modified
  • the invention provides taxane derivatives of
  • R represents a hydrogen atom or a hydroxy group, or taken together with R 3 , a bond;
  • R a and R c are hydrogens and R is hydroxy, or (ii) R a and R b taken together form a bond and R c is hydrogen, or
  • R a is hydrogen atom and R b and R c taken together form
  • R b is azido or amino group and R c is hydrogen atom;
  • R x represents a hydrogen atom, a hydroxy group or a residue
  • R' and R" are each independently Ci-Cg alkyl
  • N , as pure E or pure Z isomers or as a mixture of both E and
  • R 4 is a Ci-Cg alkyl, C 2 -C 6 alkenyl, C 3 -C 6 cycloalkyl group or a phenyl or heteroaryl group, optionally substituted with one,
  • Ci-C 6 alkyl a halogen atom and Ci-C 6 alkyl
  • R 5 is -COOR' ' ' or -COR' ' ' , or CONHR' ' ' wherein R' ' ' is Ci-
  • Cg alkyl preferably tert-butyl or n-pentyl, C 2 -C 6 alkenyl, preferably 1-methyl-l-propenyl, C 3 -C 6 cycloalkyl, C 2 -C 6 alkynyl
  • alkoxy and -CF 3 groups - or a group of the formula Y or Y-O- wherein Y is as defined above,-
  • R 2 represents a group of the formula B-NH- wherein B
  • n is 0 or l
  • R 3 represents hydrogen, or, taken with R , a bond
  • the R 2 substituent may be in the R or S configuration.
  • R 2 substituent may be in both the R and S
  • Ci-Cg alkyl group is a straight or branched alkyl group
  • Ci-C 4 alkyl group such as methyl, ethyl, n-propyl,
  • a C 2 -C 6 alkenyl group is a straight or branched
  • alkenyl group preferably a C 2 -C 5 alkenyl group such as vinyl
  • a C 3 -C 6 cycloalkyl group is a saturated
  • a halogen is preferably fluorine, chlorine, bromine or
  • the heteroaryl group is preferably a 3- to 6-membered
  • heterocycyl ring may be a 3-, 4-, 5- or 6- membered such ring.
  • a cycloalkyl group is generally a said C 3 -C 6 cycloalkyl group.
  • An aryl group is generally phenyl or
  • heterocyclyl groups are pyrrolyl, pyrazolyl,
  • imidazolyl triazolyl, tetrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl,thienyl, furyl,
  • a C 2 -C 6 alkenediyl chain can be a straight or branched
  • the C 2 -C 6 alkynyl group is a
  • a C ⁇ -C 6 alkoxy group can be a straight chain or
  • branched alkoxy group preferably a C ⁇ ⁇ C 4 alkoxy group such as
  • Preferred compounds of the invention are taxane derivatives
  • R a and R c are hydrogen atoms and R b is hydroxy, R x
  • R' and R" are each independently C ⁇ -C 4 alkyl, C 2 -C 3 alkenyl, C 3 -C 6 cycloalkyl, C 2 -C 5 alkynyl or a phenyl group,
  • A represents: - a hydrogen atom, a hydroxy, methoxy, acetoxy, amino,
  • R 4 is a Ci-C- alkyl, C 2 -C 5 alkenyl, C 3 -C 6 cycloalkyl group or a
  • R 5 is -COOR' ' ' or -COR' ' ' or -CONHR' ' ' wherein R' " is Ci ⁇ C 4
  • alkyl C 2 -C 5 alkenyl, C 3 -C 6 cycloalkyl, C 2 -C 4 alkynyl or a
  • phenyl group optionally substituted with one, two or three
  • substituents which may be the same or different and which are selected from a halogen atom and C ⁇ C 4 alkyl, C ⁇ C 4 alkoxy and
  • R 2 represents a group of the formula -NH-B wherein B
  • n 0 or 1
  • R 3 represents hydrogen, taken together with R, a bond.
  • Ri is preferably a hydrogen atom, a hydroxy group or an acetoxy
  • R 3 is preferably a hydrogen atom.
  • R 2 preferably
  • B is preferably the
  • R 4 is preferably phenyl or 2-furyl.
  • R 5 is benzoyl or t- butoxycarbonyl group.
  • the pharmaceutically acceptable salts are typically those salts formed with pharmaceutically acceptable acids, both inorganic acids like hydrochloric, hydrobromic, sulfuric, phosphoric, diphosphoric, or nitric acid and organic acids such as citric, fumaric, maleic, malic, ascorbic, succinic, tartaric, benzoic, acetic, methanesulphonic, ethanesulfonic, benzenesulfonic or p-toluenesulfonic acid.
  • inorganic acids like hydrochloric, hydrobromic, sulfuric, phosphoric, diphosphoric, or nitric acid
  • organic acids such as citric, fumaric, maleic, malic, ascorbic, succinic, tartaric, benzoic, acetic, methanesulphonic, ethanesulfonic, benzenesulfonic or p-toluenesulfonic acid.
  • Further preferred compounds of the invention are: 13-aza-paclitaxel, 13-aza-10-desacetoxy paclitaxel, 13-aza-10- desacetyl paclitaxel, 13-aza-taxotere, l3-aza-10-deoxy- taxotere, 10 deacetoxy-13-deoxy-13-imino paclitaxel, 10,13 dideoxy-13-imino taxotere, 13-deoxy-13-imino paclitaxel, 13- deoxy-13-imino taxotere, 10-deacetoxy-13-deoxy-13, 14 ene-13- aza-paclitaxel, 13-deoxy-13, 14 ene-13-aza-paclitaxel, 10,13- dideoxy-13, 14 ene-13 aza-taxotere, 13,14 ene-13-aza-taxotere.
  • the suffix "aza" means that the oxygen atom of the substituent at position 13 of the taxol structure has been replaced with an NH residue.
  • the present invention also provides a process for the preparation of taxane derivatives of formula I as above defined.
  • the following scheme illustrates the reaction sequence:
  • the process comprises, in a first step (a) , the reaction of
  • R 1# R a and R c are as defined above and R' b or has the same meanings of R b except for OH or NH 2 , either represents a
  • trialkylsilyl or other hydroxy protecting groups such as phenyldimethylsilyl, triisopropylsilyl, t-
  • ammonia or an ammonium salt such as ammonium chloride
  • acylating agent such as acetic anhydride or
  • step (c) the resultant 13-oxime of formula IV may be
  • Nickel, Pt or Pd to give the hydroxylamino derivatives of the
  • the compound of formula IVb may be oxidized in the
  • organic peracid such as m-chloro perbenzoic acid
  • step (d) the compound of formula IV, IVa, ,- IVc, V or
  • VI can optionally be reduced to give the amino derivative of formula IX using standard procedures (e.g. reduction with
  • step (e) the C-13 derivatives of formula IV, IVa, IVb, VII, VIII or IX can be acylated with an appropriately
  • R A is a hydroxy protecting group, preferably wherein R A is a hydroxy protecting group, preferably
  • R B is H or CH 3
  • R c is CH 3 or an optionally substituted phenyl group
  • R D is an
  • R c and R 4 and R 5 are as defined above, in the presence of a condensing agent such
  • the deprotection is carried out for example by
  • protecting group is removed in acidic conditions, such as with
  • Xb, Xc and Xd are known or may be carried out according to known methods; for example 7-triethylsilyl-3-keto-baccatin
  • the present invention also provides a
  • R 7 is hydrogen
  • the compound of formula la and the pharmaceutically acceptable salt thereof may be prepared by a process which comprises:
  • R 1; R a , R b ' , R c and R 7 are as above defined except
  • Step (a) may be effected by using standard conditions such as
  • Step (b) can be carried out as described above for step (f)
  • the appropriate acylating agent may be selected from the group
  • activated/protected carboxylic acid derivatives such as
  • the cytotoxic activity of the compounds may be evaluated on
  • the mode of action of the compound may also be
  • Calf brain tubulin was prepared by two cycles of
  • MAB 0.1 M MES, 2.5 mM EGTA, 0.5 mM MgS0 4
  • the cuvette (1 cm path) containing tubulin (lmg/ml) and 1
  • antitumour agents They may also be useful for the preparation of other antitumour agents.
  • a human or animal may also be useful for the preparation of other antitumour agents.
  • a human or animal may also be useful for the preparation of other antitumour agents.
  • suffering from a tumour may thus be treated by a method which
  • the condition of the human or animal may thereby be improved.
  • tumours examples include sarcomas,
  • Taxane adenocarcinomas.
  • salts thereof can be used to treat ovarian cancer
  • platinum-resistant ovarian cancer metastatic breast cancer, non-small cell lung cancer, and head and neck cancer.
  • invention also provides a pharmaceutical composition which
  • composition of the invention is usually prepared following conventional methods and is administered in a
  • Administration can be made by
  • antitumour agents such as intravenous, intramuscular or subcutaneous
  • active compound may be, e.g., dissolved in a vehicle
  • person may range from about O.Olg to about lg per day.
  • the (E) -oxime was isolated as a white solid (lOOmg, 38% yield) .
  • isomer 1 (24mg, 15%)
  • isomer 2 (31mg, 19%) .
  • Raney-nickel aqueous slurry 50mg was added. The reaction mixture was stirred at room temperature for 3 hours, then was
  • reaction mixture was stirred for 2 hours at 0°C.
  • the reaction mixture was poured into ice-water and extracted with
  • reaction mixture was poured into cold water and extracted
  • the title compound may be in equilibrium with the following
  • reaction mixture was stirred at 0°C for 2 hours,- then it was poured into ice-water and extracted with ethyl acetate.
  • silica gel (eluant: n-hexane/ethyl acetate 1:1) .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Epoxy Compounds (AREA)
EP95938390A 1994-11-04 1995-11-02 Taxan derivate Withdrawn EP0738265A1 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB9422245A GB9422245D0 (en) 1994-11-04 1994-11-04 Taxane derivatives
GB9422245 1994-11-04
GBGB9511475.7A GB9511475D0 (en) 1995-06-07 1995-06-07 Taxane derivatives
GB9511475 1995-06-07
GBGB9521168.6A GB9521168D0 (en) 1995-10-16 1995-10-16 Taxane derivatives
GB9521168 1995-10-16
PCT/EP1995/004302 WO1996014308A1 (en) 1994-11-04 1995-11-02 Taxane derivatives

Publications (1)

Publication Number Publication Date
EP0738265A1 true EP0738265A1 (de) 1996-10-23

Family

ID=27267459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95938390A Withdrawn EP0738265A1 (de) 1994-11-04 1995-11-02 Taxan derivate

Country Status (4)

Country Link
US (2) US5719177A (de)
EP (1) EP0738265A1 (de)
JP (1) JPH09509431A (de)
WO (1) WO1996014308A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5719177A (en) * 1994-11-04 1998-02-17 Pharmacia S.P.A. Taxane derivatives
AU6315500A (en) * 1999-07-28 2001-02-13 Kobe Natural Products And Chemicals Co., Ltd. Multidrug-resistant cancer overcoming agents and process for producing the same
JP4502338B2 (ja) * 1999-09-17 2010-07-14 株式会社横浜国際バイオ研究所 タキソイド化合物の製造法
EP2289549A3 (de) 1999-10-01 2011-06-15 Immunogen, Inc. Immunokonjugate für Krebsbehandlung
US6649632B2 (en) 2000-02-02 2003-11-18 Fsu Research Foundation, Inc. C10 ester substituted taxanes
JP2004501143A (ja) 2000-06-22 2004-01-15 ニトロメド　インコーポレーテッド ニトロソ化およびニトロシル化タキサン、組成物および使用方法
ITMI20021921A1 (it) 2002-09-10 2004-03-11 Indena Spa Funzionalizzazione della posizione 14 dei nuclei tassanici e sintesi di nuovi derivati antitumorali.
PE20050693A1 (es) 2004-02-13 2005-09-27 Univ Florida State Res Found Taxanos sustituidos con esteres de ciclopentilo en c10
EP1883627B1 (de) 2005-05-18 2018-04-18 Pharmascience Inc. An die bir-domäne bindende verbindungen
AU2007250443B2 (en) 2006-05-16 2013-06-13 Pharmascience Inc. IAP BIR domain binding compounds
WO2009145981A1 (en) 2008-03-31 2009-12-03 Florida State University Research Foundation, Inc. C(10) ethyl ester and c(10) cyclopropyl ester substituted taxanes
ES2625637T3 (es) 2010-02-12 2017-07-20 Pharmascience Inc. Compuestos de unión al dominio BIR IAP
WO2013119864A1 (en) 2012-02-07 2013-08-15 University Of Central Florida Research Foundation, Inc. Increasing taxane sensitivity in cancer cells
CA2943609A1 (en) 2014-03-27 2015-10-01 The Brigham And Women's Hospital, Inc. Metabolically-activated drug conjugates to overcome resistance in cancer therapy

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5719177A (en) * 1994-11-04 1998-02-17 Pharmacia S.P.A. Taxane derivatives

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9614308A1 *

Also Published As

Publication number Publication date
WO1996014308A1 (en) 1996-05-17
JPH09509431A (ja) 1997-09-22
US5719177A (en) 1998-02-17
US5912263A (en) 1999-06-15

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